'Priests' in the Bible

Zadok the son of Ahitub and Ahimelech the son of Abiathar were priests, and Seraiah was secretary.

Are not Zadok and Abiathar the priests with you there? So it shall be that whatever you hear from the king’s house, you shall report to Zadok and Abiathar the priests.

Then Hushai said to Zadok and to Abiathar the priests, “This is what Ahithophel counseled Absalom and the elders of Israel, and this is what I have counseled.

Then King David sent to Zadok and Abiathar the priests, saying, “Speak to the elders of Judah, saying, ‘Why are you the last to bring the king back to his house, since the word of all Israel has come to the king, even to his house?

and Sheva was scribe, and Zadok and Abiathar were priests;